2231208 has 96 divisors (see below), whose sum is σ = 7300800. Its totient is φ = 601344.

The previous prime is 2231171. The next prime is 2231209. The reversal of 2231208 is 8021322.

It is a happy number.

It is a super-3 number, since 3×2231208³ = 33322795661516852736, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9460 + ... + 9692.

It is an arithmetic number, because the mean of its divisors is an integer number (76050).

2^2231208 is an apocalyptic number.

2231208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3650400).

2231208 is an abundant number, since it is smaller than the sum of its proper divisors (5069592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231208 is a wasteful number, since it uses less digits than its factorization.

2231208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2231208 is about 1493.7228658623. The cubic root of 2231208 is about 130.6712421462.

It can be divided in two parts, 223 and 1208, that added together give a triangular number (1431 = T₅₃).

The spelling of 2231208 in words is "two million, two hundred thirty-one thousand, two hundred eight".